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Smartphones: The Slot Machines Stealing Our Attention
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Professor Cal Newport, author of Deep Work, once made a chilling comparison.
He argued that social media is not an essential utility of the 21st century, but something closer to a slot machine designed to sell users’ attention.
Just as people lose money in casinos, we are losing something equally valuable inside our smartphone screens: our ability to focus.
What makes this more dangerous is that it doesn’t hurt at all.
It feels short, fast, and sweet.
From a neuroscience perspective, social media and short-form videos directly stimulate the brain’s reward system, flooding it with dopamine.
The stimulation is far more intense than ordinary pleasures like reading a book or taking a quiet walk.
And that is where the real problem begins.
Just as people accustomed to sugar stop noticing the sweetness of fruit, brains conditioned by constant digital stimulation begin to mistake quiet, uneventful moments for boredom.
That is why we often fail to recover, even while “resting.”
We feel exhausted despite doing nothing.
This is not simply overwork.
It is because we are resting in ways that quietly consume our attention.
One notification.
One short video.
A few more scrolls.
For the brain, these are not moments of rest, but a continuous stream of tiny awakenings.
And over time, even the depth of the work we could have done begins to fade.
So the question becomes this:
Are we truly becoming more connected
or
are we slowly burning ourselves out?
And increasingly, the numbers are already giving us the answer.
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Digital Detox: Not Using Less, but Using Better
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A digital detox refers to intentionally reducing or pausing the use of smartphones and social media for a certain period of time.
The OECD describes this as digital well-being the act of reclaiming control over how and in what context we use technology.
《What We Are Losing》
This change is not just emotional.
It is already visible in measurable data.
Gen Z now spends an average of 7.3 hours per day on smartphones (Statista, 2023).
More than 3 hours a day are spent on social media alone.
And this time is not simply leisure.
It gradually erodes sleep, concentration, emotional regulation, and self-esteem at the same time.
Notifications are especially damaging.
According to research cited by the Harvard Business Review (HBR), after checking a single notification, it takes an average of 23 minutes to fully regain the original state of focus.
In other words, a significant portion of our day is spent simply trying to concentrate again.
A study from Stanford University is even more direct:
The more frequently people check their smartphones, the more their working memory declines by 20–30%, while learning efficiency drops by around 40%.
And an exhausted brain struggles to distinguish truth from falsehood.
According to an MIT study, when attention is weakened, people become 2.4 times more likely to believe fake news.
If you would like to learn more about fake news, please refer to the following article. ⇊ |
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Science Has Identified the “Optimal Zone” for Screen Time
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According to an OECD study across 14 countries, the relationship between screen time and life satisfaction formed an interesting U-shaped curve.
OECD Analysis: The Relationship Between Personal Screen Time and Well-Being
Mental health (WHO-5), life satisfaction, and sense of meaning in life (eudaimonia) were highest when screen time was between 1–3 hours per day, but declined once usage exceeded 5 hours.
Source: OECD, Screen Time and Subjective Well-Being (2025)
• Optimal range: 1–3 hours per day
In this range, mental health and life satisfaction were at their highest.
• Risk level: More than 5 hours per day
Beyond this point, mental health indicators showed a significant decline.
And this is not just about social media.
It suggests that even screens used for work, study, or productivity can harm mental well-being when overused.
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The American Psychological Association’s Guide to Smarter Social Media Use
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In its official 2023 recommendations, the American Psychological Association (APA) does not simply say:
“Use social media less.”
Instead, it encourages people to:
“Use it better.”
As the APA explains:
“The problem is not social media itself, but how we use it.”
《Official APA Recommendations for Social Media Use》
1. Use It for Connection
Mindless scrolling in isolation tends to increase depression and loneliness.
Use social media to create real human connection, not just passive consumption.
2. Use It Consciously
Social media platforms are designed to influence emotions and attention.
Understanding that design is the first step toward regaining control.
3. Avoid Constant Comparison
Comparison is one of the fastest paths toward lower self-esteem and depression.
The moment you notice yourself comparing your life to others online, it is important to pause.
4. Avoid Social Media Before Sleep
Using social media late at night keeps the brain stimulated
and makes it harder to rest properly.
5. Recognize the Warning Sign of Losing Control
If you want to stop but feel unable to, it may no longer be just a matter of willpower.
It can be a sign that you need support or healthier boundaries.
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When You Step Away from Social Media, Your Mind Changes
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If you’ve recently found yourself feeling unusually sensitive, unable to focus for long, or constantly comparing yourself to others, it does not mean your willpower is weak.
The U.S. Surgeon General’s report warns that when adolescents and young adults use social media for more than three hours a day, the risk of mental health problems such as depression and anxiety may increase.
And there is another interesting finding.
According to a study published in JAMA Network Open, conducted with researchers from Harvard Medical School’s Department of Psychiatry, when 373 young adults aged 18–24 reduced their social media use for just one week:
• Anxiety decreased by 16%
• Depression decreased by 25%
• Insomnia decreased by 14%
When comparison disappears, the mind recovers surprisingly quickly.
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A Small Digital Detox You Can Start Today
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You do not need a perfect detox.
A small adjustment in distance is enough.
• Notification Diet:
Turn off notifications for everything except the apps you truly need.
• Phone-Free Zones:
During meals, leave your phone in another room.
• 120 Minutes in Nature:
Spend at least two hours a week looking at the sky and trees instead of screens.
• Focus Apps:
Use tools like Forest, which turn concentration into a game. More than 60 million people worldwide are already using it.
Digital detox is not about reducing your life.
It is about reclaiming your ability to focus.
The fewer notifications we receive, the more we regain the ability to think deeply, feel slowly, and connect meaningfully.
You do not have to disconnect from the digital world.
But you do need to take back control.
Written by Sharon Choi
Director of Planning
Sunhak Peace Prize Secretariat
If you would like to learn more about fake news, please refer to the following article. ⇊ What Is Information Warfare? |
References & Sources Digital Detox & Digital Well-Being • Organisation for Economic Co-operation and Development (OECD). Screen Time and Subjective Well-Being.(2025). — Cross-national analysis of 14 countries showing a U-shaped relationship between screen time, mental health, and life satisfaction. https://www.oecd.org/education/screen-time-and-well-being/ • OECD. How’s Life in the Digital Age? — Introduces the concept of digital well-being, emphasizing quality and context of digital use over total time spent. Attention, Cognition & Smartphone Use • Harvard Business Review. — Research cited indicating it takes an average of 23 minutes to regain full focus after a digital interruption. • Ophir, E., Nass, C., & Wagner, A. D. Cognitive control in media multitaskers. Proceedings of the National Academy of Sciences. — Heavy media multitasking is associated with reduced working memory and attentional control. Youth, Sleep & Mental Health • World Health Organization (WHO). Adolescent Mental Health Fact Sheet. — Reports that approximately 40% of adolescents experience sleep problems, with nighttime smartphone use as a major contributing factor. https://www.who.int/news-room/fact-sheets/detail/adolescent-mental-health • U.S. Surgeon General. Social Media and Youth Mental Health Advisory.(2023). — Warns that adolescents using social media more than 3 hours per day face increased risk of depression and anxiety. Social Media & Psychological Effects • American Psychological Association (APA). Health Advisory on Social Media Use in Adolescence.(2023). — Emphasizes that howsocial media is used matters more than how muchit is used. https://www.apa.org/topics/social-media-internet/health-advisory-adolescent-social-media-use • JAMA Network Open. — Experimental study showing significant reductions in anxiety, depression, and insomnia after one week of reduced social media use among young adults. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2780257 Misinformation, Attention & Media Literacy • Vosoughi, S., Roy, D., & Aral, S. The spread of true and false news online. Science. — Demonstrates that reduced attention and cognitive overload increase susceptibility to misinformation. https://www.science.org/doi/10.1126/science.aap9559 Nature Exposure & Mental Recovery • White, M. P., et al. (University of Exeter). Spending at least 120 minutes a week in nature is associated with good health and well-being. Scientific Reports. — Finds that 120 minutes of weekly nature exposure significantly improves mental well-being. https://www.nature.com/articles/s41598-019-44097-3 Usage Statistics • Statista. Daily smartphone usage time among Generation Z worldwide.(2023). — Reports an average daily smartphone usage of 7.3 hours among Gen Z users. |